/*!
 * Modernizr v2.8.3
 * www.modernizr.com
 *
 * Copyright (c) Faruk Ates, Paul Irish, Alex Sexton
 * Available under the BSD and MIT licenses: www.modernizr.com/license/
 */

/*
 * Modernizr tests which native CSS3 and HTML5 features are available in
 * the current UA and makes the results available to you in two ways:
 * as properties on a global Modernizr object, and as classes on the
 * <html> element. This information allows you to progressively enhance
 * your pages with a granular level of control over the experience.
 *
 * Modernizr has an optional (not included) conditional resource loader
 * called Modernizr.load(), based on Yepnope.js (yepnopejs.com).
 * To get a build that includes Modernizr.load(), as well as choosing
 * which tests to include, go to www.modernizr.com/download/
 *
 * Authors        Faruk Ates, Paul Irish, Alex Sexton
 * Contributors   Ryan Seddon, Ben Alman
 */

window.Modernizr = (function( window, document, undefined ) {
    
        var version = '2.8.3',
    
        Modernizr = {},
    
        /*>>cssclasses*/
        // option for enabling the HTML classes to be added
        enableClasses = true,
        /*>>cssclasses*/
    
        docElement = document.documentElement,
    
        /**
         * Create our "modernizr" element that we do most feature tests on.
         */
        mod = 'modernizr',
        modElem = document.createElement(mod),
        mStyle = modElem.style,
    
        /**
         * Create the input element for various Web Forms feature tests.
         */
        inputElem /*>>inputelem*/ = document.createElement('input') /*>>inputelem*/ ,
    
        /*>>smile*/
        smile = ':)',
        /*>>smile*/
    
        toString = {}.toString,
    
        // TODO :: make the prefixes more granular
        /*>>prefixes*/
        // List of property values to set for css tests. See ticket #21
        prefixes = ' -webkit- -moz- -o- -ms- '.split(' '),
        /*>>prefixes*/
    
        /*>>domprefixes*/
        // Following spec is to expose vendor-specific style properties as:
        //   elem.style.WebkitBorderRadius
        // and the following would be incorrect:
        //   elem.style.webkitBorderRadius
    
        // Webkit ghosts their properties in lowercase but Opera & Moz do not.
        // Microsoft uses a lowercase `ms` instead of the correct `Ms` in IE8+
        //   erik.eae.net/archives/2008/03/10/21.48.10/
    
        // More here: github.com/Modernizr/Modernizr/issues/issue/21
        omPrefixes = 'Webkit Moz O ms',
    
        cssomPrefixes = omPrefixes.split(' '),
    
        domPrefixes = omPrefixes.toLowerCase().split(' '),
        /*>>domprefixes*/
    
        /*>>ns*/
        ns = {'svg': 'http://www.w3.org/2000/svg'},
        /*>>ns*/
    
        tests = {},
        inputs = {},
        attrs = {},
    
        classes = [],
    
        slice = classes.slice,
    
        featureName, // used in testing loop
    
    
        /*>>teststyles*/
        // Inject element with style element and some CSS rules
        injectElementWithStyles = function( rule, callback, nodes, testnames ) {
    
          var style, ret, node, docOverflow,
              div = document.createElement('div'),
              // After page load injecting a fake body doesn't work so check if body exists
              body = document.body,
              // IE6 and 7 won't return offsetWidth or offsetHeight unless it's in the body element, so we fake it.
              fakeBody = body || document.createElement('body');
    
          if ( parseInt(nodes, 10) ) {
              // In order not to give false positives we create a node for each test
              // This also allows the method to scale for unspecified uses
              while ( nodes-- ) {
                  node = document.createElement('div');
                  node.id = testnames ? testnames[nodes] : mod + (nodes + 1);
                  div.appendChild(node);
              }
          }
    
          // <style> elements in IE6-9 are considered 'NoScope' elements and therefore will be removed
          // when injected with innerHTML. To get around this you need to prepend the 'NoScope' element
          // with a 'scoped' element, in our case the soft-hyphen entity as it won't mess with our measurements.
          // msdn.microsoft.com/en-us/library/ms533897%28VS.85%29.aspx
          // Documents served as xml will throw if using &shy; so use xml friendly encoded version. See issue #277
          style = ['&#173;','<style id="s', mod, '">', rule, '</style>'].join('');
          div.id = mod;
          // IE6 will false positive on some tests due to the style element inside the test div somehow interfering offsetHeight, so insert it into body or fakebody.
          // Opera will act all quirky when injecting elements in documentElement when page is served as xml, needs fakebody too. #270
          (body ? div : fakeBody).innerHTML += style;
          fakeBody.appendChild(div);
          if ( !body ) {
              //avoid crashing IE8, if background image is used
              fakeBody.style.background = '';
              //Safari 5.13/5.1.4 OSX stops loading if ::-webkit-scrollbar is used and scrollbars are visible
              fakeBody.style.overflow = 'hidden';
              docOverflow = docElement.style.overflow;
              docElement.style.overflow = 'hidden';
              docElement.appendChild(fakeBody);
          }
    
          ret = callback(div, rule);
          // If this is done after page load we don't want to remove the body so check if body exists
          if ( !body ) {
              fakeBody.parentNode.removeChild(fakeBody);
              docElement.style.overflow = docOverflow;
          } else {
              div.parentNode.removeChild(div);
          }
    
          return !!ret;
    
        },
        /*>>teststyles*/
    
        /*>>mq*/
        // adapted from matchMedia polyfill
        // by Scott Jehl and Paul Irish
        // gist.github.com/786768
        testMediaQuery = function( mq ) {
    
          var matchMedia = window.matchMedia || window.msMatchMedia;
          if ( matchMedia ) {
            return matchMedia(mq) && matchMedia(mq).matches || false;
          }
    
          var bool;
    
          injectElementWithStyles('@media ' + mq + ' { #' + mod + ' { position: absolute; } }', function( node ) {
            bool = (window.getComputedStyle ?
                      getComputedStyle(node, null) :
                      node.currentStyle)['position'] == 'absolute';
          });
    
          return bool;
    
         },
         /*>>mq*/
    
    
        /*>>hasevent*/
        //
        // isEventSupported determines if a given element supports the given event
        // kangax.github.com/iseventsupported/
        //
        // The following results are known incorrects:
        //   Modernizr.hasEvent("webkitTransitionEnd", elem) // false negative
        //   Modernizr.hasEvent("textInput") // in Webkit. github.com/Modernizr/Modernizr/issues/333
        //   ...
        isEventSupported = (function() {
    
          var TAGNAMES = {
            'select': 'input', 'change': 'input',
            'submit': 'form', 'reset': 'form',
            'error': 'img', 'load': 'img', 'abort': 'img'
          };
    
          function isEventSupported( eventName, element ) {
    
            element = element || document.createElement(TAGNAMES[eventName] || 'div');
            eventName = 'on' + eventName;
    
            // When using `setAttribute`, IE skips "unload", WebKit skips "unload" and "resize", whereas `in` "catches" those
            var isSupported = eventName in element;
    
            if ( !isSupported ) {
              // If it has no `setAttribute` (i.e. doesn't implement Node interface), try generic element
              if ( !element.setAttribute ) {
                element = document.createElement('div');
              }
              if ( element.setAttribute && element.removeAttribute ) {
                element.setAttribute(eventName, '');
                isSupported = is(element[eventName], 'function');
    
                // If property was created, "remove it" (by setting value to `undefined`)
                if ( !is(element[eventName], 'undefined') ) {
                  element[eventName] = undefined;
                }
                element.removeAttribute(eventName);
              }
            }
    
            element = null;
            return isSupported;
          }
          return isEventSupported;
        })(),
        /*>>hasevent*/
    
        // TODO :: Add flag for hasownprop ? didn't last time
    
        // hasOwnProperty shim by kangax needed for Safari 2.0 support
        _hasOwnProperty = ({}).hasOwnProperty, hasOwnProp;
    
        if ( !is(_hasOwnProperty, 'undefined') && !is(_hasOwnProperty.call, 'undefined') ) {
          hasOwnProp = function (object, property) {
            return _hasOwnProperty.call(object, property);
          };
        }
        else {
          hasOwnProp = function (object, property) { /* yes, this can give false positives/negatives, but most of the time we don't care about those */
            return ((property in object) && is(object.constructor.prototype[property], 'undefined'));
          };
        }
    
        // Adapted from ES5-shim https://github.com/kriskowal/es5-shim/blob/master/es5-shim.js
        // es5.github.com/#x15.3.4.5
    
        if (!Function.prototype.bind) {
          Function.prototype.bind = function bind(that) {
    
            var target = this;
    
            if (typeof target != "function") {
                throw new TypeError();
            }
    
            var args = slice.call(arguments, 1),
                bound = function () {
    
                if (this instanceof bound) {
    
                  var F = function(){};
                  F.prototype = target.prototype;
                  var self = new F();
    
                  var result = target.apply(
                      self,
                      args.concat(slice.call(arguments))
                  );
                  if (Object(result) === result) {
                      return result;
                  }
                  return self;
    
                } else {
    
                  return target.apply(
                      that,
                      args.concat(slice.call(arguments))
                  );
    
                }
    
            };
    
            return bound;
          };
        }
    
        /**
         * setCss applies given styles to the Modernizr DOM node.
         */
        function setCss( str ) {
            mStyle.cssText = str;
        }
    
        /**
         * setCssAll extrapolates all vendor-specific css strings.
         */
        function setCssAll( str1, str2 ) {
            return setCss(prefixes.join(str1 + ';') + ( str2 || '' ));
        }
    
        /**
         * is returns a boolean for if typeof obj is exactly type.
         */
        function is( obj, type ) {
            return typeof obj === type;
        }
    
        /**
         * contains returns a boolean for if substr is found within str.
         */
        function contains( str, substr ) {
            return !!~('' + str).indexOf(substr);
        }
    
        /*>>testprop*/
    
        // testProps is a generic CSS / DOM property test.
    
        // In testing support for a given CSS property, it's legit to test:
        //    `elem.style[styleName] !== undefined`
        // If the property is supported it will return an empty string,
        // if unsupported it will return undefined.
    
        // We'll take advantage of this quick test and skip setting a style
        // on our modernizr element, but instead just testing undefined vs
        // empty string.
    
        // Because the testing of the CSS property names (with "-", as
        // opposed to the camelCase DOM properties) is non-portable and
        // non-standard but works in WebKit and IE (but not Gecko or Opera),
        // we explicitly reject properties with dashes so that authors
        // developing in WebKit or IE first don't end up with
        // browser-specific content by accident.
    
        function testProps( props, prefixed ) {
            for ( var i in props ) {
                var prop = props[i];
                if ( !contains(prop, "-") && mStyle[prop] !== undefined ) {
                    return prefixed == 'pfx' ? prop : true;
                }
            }
            return false;
        }
        /*>>testprop*/
    
        // TODO :: add testDOMProps
        /**
         * testDOMProps is a generic DOM property test; if a browser supports
         *   a certain property, it won't return undefined for it.
         */
        function testDOMProps( props, obj, elem ) {
            for ( var i in props ) {
                var item = obj[props[i]];
                if ( item !== undefined) {
    
                    // return the property name as a string
                    if (elem === false) return props[i];
    
                    // let's bind a function
                    if (is(item, 'function')){
                      // default to autobind unless override
                      return item.bind(elem || obj);
                    }
    
                    // return the unbound function or obj or value
                    return item;
                }
            }
            return false;
        }
    
        /*>>testallprops*/
        /**
         * testPropsAll tests a list of DOM properties we want to check against.
         *   We specify literally ALL possible (known and/or likely) properties on
         *   the element including the non-vendor prefixed one, for forward-
         *   compatibility.
         */
        function testPropsAll( prop, prefixed, elem ) {
    
            var ucProp  = prop.charAt(0).toUpperCase() + prop.slice(1),
                props   = (prop + ' ' + cssomPrefixes.join(ucProp + ' ') + ucProp).split(' ');
    
            // did they call .prefixed('boxSizing') or are we just testing a prop?
            if(is(prefixed, "string") || is(prefixed, "undefined")) {
              return testProps(props, prefixed);
    
            // otherwise, they called .prefixed('requestAnimationFrame', window[, elem])
            } else {
              props = (prop + ' ' + (domPrefixes).join(ucProp + ' ') + ucProp).split(' ');
              return testDOMProps(props, prefixed, elem);
            }
        }
        /*>>testallprops*/
    
    
        /**
         * Tests
         * -----
         */
    
        // The *new* flexbox
        // dev.w3.org/csswg/css3-flexbox
    
        tests['flexbox'] = function() {
          return testPropsAll('flexWrap');
        };
    
        // The *old* flexbox
        // www.w3.org/TR/2009/WD-css3-flexbox-20090723/
    
        tests['flexboxlegacy'] = function() {
            return testPropsAll('boxDirection');
        };
    
        // On the S60 and BB Storm, getContext exists, but always returns undefined
        // so we actually have to call getContext() to verify
        // github.com/Modernizr/Modernizr/issues/issue/97/
    
        tests['canvas'] = function() {
            var elem = document.createElement('canvas');
            return !!(elem.getContext && elem.getContext('2d'));
        };
    
        tests['canvastext'] = function() {
            return !!(Modernizr['canvas'] && is(document.createElement('canvas').getContext('2d').fillText, 'function'));
        };
    
        // webk.it/70117 is tracking a legit WebGL feature detect proposal
    
        // We do a soft detect which may false positive in order to avoid
        // an expensive context creation: bugzil.la/732441
    
        tests['webgl'] = function() {
            return !!window.WebGLRenderingContext;
        };
    
        /*
         * The Modernizr.touch test only indicates if the browser supports
         *    touch events, which does not necessarily reflect a touchscreen
         *    device, as evidenced by tablets running Windows 7 or, alas,
         *    the Palm Pre / WebOS (touch) phones.
         *
         * Additionally, Chrome (desktop) used to lie about its support on this,
         *    but that has since been rectified: crbug.com/36415
         *
         * We also test for Firefox 4 Multitouch Support.
         *
         * For more info, see: modernizr.github.com/Modernizr/touch.html
         */
    
        tests['touch'] = function() {
            var bool;
    
            if(('ontouchstart' in window) || window.DocumentTouch && document instanceof DocumentTouch) {
              bool = true;
            } else {
              injectElementWithStyles(['@media (',prefixes.join('touch-enabled),('),mod,')','{#modernizr{top:9px;position:absolute}}'].join(''), function( node ) {
                bool = node.offsetTop === 9;
              });
            }
    
            return bool;
        };
    
    
        // geolocation is often considered a trivial feature detect...
        // Turns out, it's quite tricky to get right:
        //
        // Using !!navigator.geolocation does two things we don't want. It:
        //   1. Leaks memory in IE9: github.com/Modernizr/Modernizr/issues/513
        //   2. Disables page caching in WebKit: webk.it/43956
        //
        // Meanwhile, in Firefox < 8, an about:config setting could expose
        // a false positive that would throw an exception: bugzil.la/688158
    
        tests['geolocation'] = function() {
            return 'geolocation' in navigator;
        };
    
    
        tests['postmessage'] = function() {
          return !!window.postMessage;
        };
    
    
        // Chrome incognito mode used to throw an exception when using openDatabase
        // It doesn't anymore.
        tests['websqldatabase'] = function() {
          return !!window.openDatabase;
        };
    
        // Vendors had inconsistent prefixing with the experimental Indexed DB:
        // - Webkit's implementation is accessible through webkitIndexedDB
        // - Firefox shipped moz_indexedDB before FF4b9, but since then has been mozIndexedDB
        // For speed, we don't test the legacy (and beta-only) indexedDB
        tests['indexedDB'] = function() {
          return !!testPropsAll("indexedDB", window);
        };
    
        // documentMode logic from YUI to filter out IE8 Compat Mode
        //   which false positives.
        tests['hashchange'] = function() {
          return isEventSupported('hashchange', window) && (document.documentMode === undefined || document.documentMode > 7);
        };
    
        // Per 1.6:
        // This used to be Modernizr.historymanagement but the longer
        // name has been deprecated in favor of a shorter and property-matching one.
        // The old API is still available in 1.6, but as of 2.0 will throw a warning,
        // and in the first release thereafter disappear entirely.
        tests['history'] = function() {
          return !!(window.history && history.pushState);
        };
    
        tests['draganddrop'] = function() {
            var div = document.createElement('div');
            return ('draggable' in div) || ('ondragstart' in div && 'ondrop' in div);
        };
    
        // FF3.6 was EOL'ed on 4/24/12, but the ESR version of FF10
        // will be supported until FF19 (2/12/13), at which time, ESR becomes FF17.
        // FF10 still uses prefixes, so check for it until then.
        // for more ESR info, see: mozilla.org/en-US/firefox/organizations/faq/
        tests['websockets'] = function() {
            return 'WebSocket' in window || 'MozWebSocket' in window;
        };
    
    
        // css-tricks.com/rgba-browser-support/
        tests['rgba'] = function() {
            // Set an rgba() color and check the returned value
    
            setCss('background-color:rgba(150,255,150,.5)');
    
            return contains(mStyle.backgroundColor, 'rgba');
        };
    
        tests['hsla'] = function() {
            // Same as rgba(), in fact, browsers re-map hsla() to rgba() internally,
            //   except IE9 who retains it as hsla
    
            setCss('background-color:hsla(120,40%,100%,.5)');
    
            return contains(mStyle.backgroundColor, 'rgba') || contains(mStyle.backgroundColor, 'hsla');
        };
    
        tests['multiplebgs'] = function() {
            // Setting multiple images AND a color on the background shorthand property
            //  and then querying the style.background property value for the number of
            //  occurrences of "url(" is a reliable method for detecting ACTUAL support for this!
    
            setCss('background:url(https://),url(https://),red url(https://)');
    
            // If the UA supports multiple backgrounds, there should be three occurrences
            //   of the string "url(" in the return value for elemStyle.background
    
            return (/(url\s*\(.*?){3}/).test(mStyle.background);
        };
    
    
    
        // this will false positive in Opera Mini
        //   github.com/Modernizr/Modernizr/issues/396
    
        tests['backgroundsize'] = function() {
            return testPropsAll('backgroundSize');
        };
    
        tests['borderimage'] = function() {
            return testPropsAll('borderImage');
        };
    
    
        // Super comprehensive table about all the unique implementations of
        // border-radius: muddledramblings.com/table-of-css3-border-radius-compliance
    
        tests['borderradius'] = function() {
            return testPropsAll('borderRadius');
        };
    
        // WebOS unfortunately false positives on this test.
        tests['boxshadow'] = function() {
            return testPropsAll('boxShadow');
        };
    
        // FF3.0 will false positive on this test
        tests['textshadow'] = function() {
            return document.createElement('div').style.textShadow === '';
        };
    
    
        tests['opacity'] = function() {
            // Browsers that actually have CSS Opacity implemented have done so
            //  according to spec, which means their return values are within the
            //  range of [0.0,1.0] - including the leading zero.
    
            setCssAll('opacity:.55');
    
            // The non-literal . in this regex is intentional:
            //   German Chrome returns this value as 0,55
            // github.com/Modernizr/Modernizr/issues/#issue/59/comment/516632
            return (/^0.55$/).test(mStyle.opacity);
        };
    
    
        // Note, Android < 4 will pass this test, but can only animate
        //   a single property at a time
        //   goo.gl/v3V4Gp
        tests['cssanimations'] = function() {
            return testPropsAll('animationName');
        };
    
    
        tests['csscolumns'] = function() {
            return testPropsAll('columnCount');
        };
    
    
        tests['cssgradients'] = function() {
            /**
             * For CSS Gradients syntax, please see:
             * webkit.org/blog/175/introducing-css-gradients/
             * developer.mozilla.org/en/CSS/-moz-linear-gradient
             * developer.mozilla.org/en/CSS/-moz-radial-gradient
             * dev.w3.org/csswg/css3-images/#gradients-
             */
    
            var str1 = 'background-image:',
                str2 = 'gradient(linear,left top,right bottom,from(#9f9),to(white));',
                str3 = 'linear-gradient(left top,#9f9, white);';
    
            setCss(
                 // legacy webkit syntax (FIXME: remove when syntax not in use anymore)
                  (str1 + '-webkit- '.split(' ').join(str2 + str1) +
                 // standard syntax             // trailing 'background-image:'
                  prefixes.join(str3 + str1)).slice(0, -str1.length)
            );
    
            return contains(mStyle.backgroundImage, 'gradient');
        };
    
    
        tests['cssreflections'] = function() {
            return testPropsAll('boxReflect');
        };
    
    
        tests['csstransforms'] = function() {
            return !!testPropsAll('transform');
        };
    
    
        tests['csstransforms3d'] = function() {
    
            var ret = !!testPropsAll('perspective');
    
            // Webkit's 3D transforms are passed off to the browser's own graphics renderer.
            //   It works fine in Safari on Leopard and Snow Leopard, but not in Chrome in
            //   some conditions. As a result, Webkit typically recognizes the syntax but
            //   will sometimes throw a false positive, thus we must do a more thorough check:
            if ( ret && 'webkitPerspective' in docElement.style ) {
    
              // Webkit allows this media query to succeed only if the feature is enabled.
              // `@media (transform-3d),(-webkit-transform-3d){ ... }`
              injectElementWithStyles('@media (transform-3d),(-webkit-transform-3d){#modernizr{left:9px;position:absolute;height:3px;}}', function( node, rule ) {
                ret = node.offsetLeft === 9 && node.offsetHeight === 3;
              });
            }
            return ret;
        };
    
    
        tests['csstransitions'] = function() {
            return testPropsAll('transition');
        };
    
    
        /*>>fontface*/
        // @font-face detection routine by Diego Perini
        // javascript.nwbox.com/CSSSupport/
    
        // false positives:
        //   WebOS github.com/Modernizr/Modernizr/issues/342
        //   WP7   github.com/Modernizr/Modernizr/issues/538
        tests['fontface'] = function() {
            var bool;
    
            injectElementWithStyles('@font-face {font-family:"font";src:url("https://")}', function( node, rule ) {
              var style = document.getElementById('smodernizr'),
                  sheet = style.sheet || style.styleSheet,
                  cssText = sheet ? (sheet.cssRules && sheet.cssRules[0] ? sheet.cssRules[0].cssText : sheet.cssText || '') : '';
    
              bool = /src/i.test(cssText) && cssText.indexOf(rule.split(' ')[0]) === 0;
            });
    
            return bool;
        };
        /*>>fontface*/
    
        // CSS generated content detection
        tests['generatedcontent'] = function() {
            var bool;
    
            injectElementWithStyles(['#',mod,'{font:0/0 a}#',mod,':after{content:"',smile,'";visibility:hidden;font:3px/1 a}'].join(''), function( node ) {
              bool = node.offsetHeight >= 3;
            });
    
            return bool;
        };
    
    
    
        // These tests evaluate support of the video/audio elements, as well as
        // testing what types of content they support.
        //
        // We're using the Boolean constructor here, so that we can extend the value
        // e.g.  Modernizr.video     // true
        //       Modernizr.video.ogg // 'probably'
        //
        // Codec values from : github.com/NielsLeenheer/html5test/blob/9106a8/index.html#L845
        //                     thx to NielsLeenheer and zcorpan
    
        // Note: in some older browsers, "no" was a return value instead of empty string.
        //   It was live in FF3.5.0 and 3.5.1, but fixed in 3.5.2
        //   It was also live in Safari 4.0.0 - 4.0.4, but fixed in 4.0.5
    
        tests['video'] = function() {
            var elem = document.createElement('video'),
                bool = false;
    
            // IE9 Running on Windows Server SKU can cause an exception to be thrown, bug #224
            try {
                if ( bool = !!elem.canPlayType ) {
                    bool      = new Boolean(bool);
                    bool.ogg  = elem.canPlayType('video/ogg; codecs="theora"')      .replace(/^no$/,'');
    
                    // Without QuickTime, this value will be `undefined`. github.com/Modernizr/Modernizr/issues/546
                    bool.h264 = elem.canPlayType('video/mp4; codecs="avc1.42E01E"') .replace(/^no$/,'');
    
                    bool.webm = elem.canPlayType('video/webm; codecs="vp8, vorbis"').replace(/^no$/,'');
                }
    
            } catch(e) { }
    
            return bool;
        };
    
        tests['audio'] = function() {
            var elem = document.createElement('audio'),
                bool = false;
    
            try {
                if ( bool = !!elem.canPlayType ) {
                    bool      = new Boolean(bool);
                    bool.ogg  = elem.canPlayType('audio/ogg; codecs="vorbis"').replace(/^no$/,'');
                    bool.mp3  = elem.canPlayType('audio/mpeg;')               .replace(/^no$/,'');
    
                    // Mimetypes accepted:
                    //   developer.mozilla.org/En/Media_formats_supported_by_the_audio_and_video_elements
                    //   bit.ly/iphoneoscodecs
                    bool.wav  = elem.canPlayType('audio/wav; codecs="1"')     .replace(/^no$/,'');
                    bool.m4a  = ( elem.canPlayType('audio/x-m4a;')            ||
                                  elem.canPlayType('audio/aac;'))             .replace(/^no$/,'');
                }
            } catch(e) { }
    
            return bool;
        };
    
    
        // In FF4, if disabled, window.localStorage should === null.
    
        // Normally, we could not test that directly and need to do a
        //   `('localStorage' in window) && ` test first because otherwise Firefox will
        //   throw bugzil.la/365772 if cookies are disabled
    
        // Also in iOS5 Private Browsing mode, attempting to use localStorage.setItem
        // will throw the exception:
        //   QUOTA_EXCEEDED_ERRROR DOM Exception 22.
        // Peculiarly, getItem and removeItem calls do not throw.
    
        // Because we are forced to try/catch this, we'll go aggressive.
    
        // Just FWIW: IE8 Compat mode supports these features completely:
        //   www.quirksmode.org/dom/html5.html
        // But IE8 doesn't support either with local files
    
        tests['localstorage'] = function() {
            try {
                localStorage.setItem(mod, mod);
                localStorage.removeItem(mod);
                return true;
            } catch(e) {
                return false;
            }
        };
    
        tests['sessionstorage'] = function() {
            try {
                sessionStorage.setItem(mod, mod);
                sessionStorage.removeItem(mod);
                return true;
            } catch(e) {
                return false;
            }
        };
    
    
        tests['webworkers'] = function() {
            return !!window.Worker;
        };
    
    
        tests['applicationcache'] = function() {
            return !!window.applicationCache;
        };
    
    
        // Thanks to Erik Dahlstrom
        tests['svg'] = function() {
            return !!document.createElementNS && !!document.createElementNS(ns.svg, 'svg').createSVGRect;
        };
    
        // specifically for SVG inline in HTML, not within XHTML
        // test page: paulirish.com/demo/inline-svg
        tests['inlinesvg'] = function() {
          var div = document.createElement('div');
          div.innerHTML = '<svg/>';
          return (div.firstChild && div.firstChild.namespaceURI) == ns.svg;
        };
    
        // SVG SMIL animation
        tests['smil'] = function() {
            return !!document.createElementNS && /SVGAnimate/.test(toString.call(document.createElementNS(ns.svg, 'animate')));
        };
    
        // This test is only for clip paths in SVG proper, not clip paths on HTML content
        // demo: srufaculty.sru.edu/david.dailey/svg/newstuff/clipPath4.svg
    
        // However read the comments to dig into applying SVG clippaths to HTML content here:
        //   github.com/Modernizr/Modernizr/issues/213#issuecomment-1149491
        tests['svgclippaths'] = function() {
            return !!document.createElementNS && /SVGClipPath/.test(toString.call(document.createElementNS(ns.svg, 'clipPath')));
        };
    
        /*>>webforms*/
        // input features and input types go directly onto the ret object, bypassing the tests loop.
        // Hold this guy to execute in a moment.
        function webforms() {
            /*>>input*/
            // Run through HTML5's new input attributes to see if the UA understands any.
            // We're using f which is the <input> element created early on
            // Mike Taylr has created a comprehensive resource for testing these attributes
            //   when applied to all input types:
            //   miketaylr.com/code/input-type-attr.html
            // spec: www.whatwg.org/specs/web-apps/current-work/multipage/the-input-element.html#input-type-attr-summary
    
            // Only input placeholder is tested while textarea's placeholder is not.
            // Currently Safari 4 and Opera 11 have support only for the input placeholder
            // Both tests are available in feature-detects/forms-placeholder.js
            Modernizr['input'] = (function( props ) {
                for ( var i = 0, len = props.length; i < len; i++ ) {
                    attrs[ props[i] ] = !!(props[i] in inputElem);
                }
                if (attrs.list){
                  // safari false positive's on datalist: webk.it/74252
                  // see also github.com/Modernizr/Modernizr/issues/146
                  attrs.list = !!(document.createElement('datalist') && window.HTMLDataListElement);
                }
                return attrs;
            })('autocomplete autofocus list placeholder max min multiple pattern required step'.split(' '));
            /*>>input*/
    
            /*>>inputtypes*/
            // Run through HTML5's new input types to see if the UA understands any.
            //   This is put behind the tests runloop because it doesn't return a
            //   true/false like all the other tests; instead, it returns an object
            //   containing each input type with its corresponding true/false value
    
            // Big thanks to @miketaylr for the html5 forms expertise. miketaylr.com/
            Modernizr['inputtypes'] = (function(props) {
    
                for ( var i = 0, bool, inputElemType, defaultView, len = props.length; i < len; i++ ) {
    
                    inputElem.setAttribute('type', inputElemType = props[i]);
                    bool = inputElem.type !== 'text';
    
                    // We first check to see if the type we give it sticks..
                    // If the type does, we feed it a textual value, which shouldn't be valid.
                    // If the value doesn't stick, we know there's input sanitization which infers a custom UI
                    if ( bool ) {
    
                        inputElem.value         = smile;
                        inputElem.style.cssText = 'position:absolute;visibility:hidden;';
    
                        if ( /^range$/.test(inputElemType) && inputElem.style.WebkitAppearance !== undefined ) {
    
                          docElement.appendChild(inputElem);
                          defaultView = document.defaultView;
    
                          // Safari 2-4 allows the smiley as a value, despite making a slider
                          bool =  defaultView.getComputedStyle &&
                                  defaultView.getComputedStyle(inputElem, null).WebkitAppearance !== 'textfield' &&
                                  // Mobile android web browser has false positive, so must
                                  // check the height to see if the widget is actually there.
                                  (inputElem.offsetHeight !== 0);
    
                          docElement.removeChild(inputElem);
    
                        } else if ( /^(search|tel)$/.test(inputElemType) ){
                          // Spec doesn't define any special parsing or detectable UI
                          //   behaviors so we pass these through as true
    
                          // Interestingly, opera fails the earlier test, so it doesn't
                          //  even make it here.
    
                        } else if ( /^(url|email)$/.test(inputElemType) ) {
                          // Real url and email support comes with prebaked validation.
                          bool = inputElem.checkValidity && inputElem.checkValidity() === false;
    
                        } else {
                          // If the upgraded input compontent rejects the :) text, we got a winner
                          bool = inputElem.value != smile;
                        }
                    }
    
                    inputs[ props[i] ] = !!bool;
                }
                return inputs;
            })('search tel url email datetime date month week time datetime-local number range color'.split(' '));
            /*>>inputtypes*/
        }
        /*>>webforms*/
    
    
        // End of test definitions
        // -----------------------
    
    
    
        // Run through all tests and detect their support in the current UA.
        // todo: hypothetically we could be doing an array of tests and use a basic loop here.
        for ( var feature in tests ) {
            if ( hasOwnProp(tests, feature) ) {
                // run the test, throw the return value into the Modernizr,
                //   then based on that boolean, define an appropriate className
                //   and push it into an array of classes we'll join later.
                featureName  = feature.toLowerCase();
                Modernizr[featureName] = tests[feature]();
    
                classes.push((Modernizr[featureName] ? '' : 'no-') + featureName);
            }
        }
    
        /*>>webforms*/
        // input tests need to run.
        Modernizr.input || webforms();
        /*>>webforms*/
    
    
        /**
         * addTest allows the user to define their own feature tests
         * the result will be added onto the Modernizr object,
         * as well as an appropriate className set on the html element
         *
         * @param feature - String naming the feature
         * @param test - Function returning true if feature is supported, false if not
         */
         Modernizr.addTest = function ( feature, test ) {
           if ( typeof feature == 'object' ) {
             for ( var key in feature ) {
               if ( hasOwnProp( feature, key ) ) {
                 Modernizr.addTest( key, feature[ key ] );
               }
             }
           } else {
    
             feature = feature.toLowerCase();
    
             if ( Modernizr[feature] !== undefined ) {
               // we're going to quit if you're trying to overwrite an existing test
               // if we were to allow it, we'd do this:
               //   var re = new RegExp("\\b(no-)?" + feature + "\\b");
               //   docElement.className = docElement.className.replace( re, '' );
               // but, no rly, stuff 'em.
               return Modernizr;
             }
    
             test = typeof test == 'function' ? test() : test;
    
             if (typeof enableClasses !== "undefined" && enableClasses) {
               docElement.className += ' ' + (test ? '' : 'no-') + feature;
             }
             Modernizr[feature] = test;
    
           }
    
           return Modernizr; // allow chaining.
         };
    
    
        // Reset modElem.cssText to nothing to reduce memory footprint.
        setCss('');
        modElem = inputElem = null;
    
        /*>>shiv*/
        /**
         * @preserve HTML5 Shiv prev3.7.1 | @afarkas @jdalton @jon_neal @rem | MIT/GPL2 Licensed
         */
        ;(function(window, document) {
            /*jshint evil:true */
            /** version */
            var version = '3.7.0';
    
            /** Preset options */
            var options = window.html5 || {};
    
            /** Used to skip problem elements */
            var reSkip = /^<|^(?:button|map|select|textarea|object|iframe|option|optgroup)$/i;
    
            /** Not all elements can be cloned in IE **/
            var saveClones = /^(?:a|b|code|div|fieldset|h1|h2|h3|h4|h5|h6|i|label|li|ol|p|q|span|strong|style|table|tbody|td|th|tr|ul)$/i;
    
            /** Detect whether the browser supports default html5 styles */
            var supportsHtml5Styles;
    
            /** Name of the expando, to work with multiple documents or to re-shiv one document */
            var expando = '_html5shiv';
    
            /** The id for the the documents expando */
            var expanID = 0;
    
            /** Cached data for each document */
            var expandoData = {};
    
            /** Detect whether the browser supports unknown elements */
            var supportsUnknownElements;
    
            (function() {
              try {
                var a = document.createElement('a');
                a.innerHTML = '<xyz></xyz>';
                //if the hidden property is implemented we can assume, that the browser supports basic HTML5 Styles
                supportsHtml5Styles = ('hidden' in a);
    
                supportsUnknownElements = a.childNodes.length == 1 || (function() {
                  // assign a false positive if unable to shiv
                  (document.createElement)('a');
                  var frag = document.createDocumentFragment();
                  return (
                    typeof frag.cloneNode == 'undefined' ||
                    typeof frag.createDocumentFragment == 'undefined' ||
                    typeof frag.createElement == 'undefined'
                  );
                }());
              } catch(e) {
                // assign a false positive if detection fails => unable to shiv
                supportsHtml5Styles = true;
                supportsUnknownElements = true;
              }
    
            }());
    
            /*--------------------------------------------------------------------------*/
    
            /**
             * Creates a style sheet with the given CSS text and adds it to the document.
             * @private
             * @param {Document} ownerDocument The document.
             * @param {String} cssText The CSS text.
             * @returns {StyleSheet} The style element.
             */
            function addStyleSheet(ownerDocument, cssText) {
              var p = ownerDocument.createElement('p'),
              parent = ownerDocument.getElementsByTagName('head')[0] || ownerDocument.documentElement;
    
              p.innerHTML = 'x<style>' + cssText + '</style>';
              return parent.insertBefore(p.lastChild, parent.firstChild);
            }
    
            /**
             * Returns the value of `html5.elements` as an array.
             * @private
             * @returns {Array} An array of shived element node names.
             */
            function getElements() {
              var elements = html5.elements;
              return typeof elements == 'string' ? elements.split(' ') : elements;
            }
    
            /**
             * Returns the data associated to the given document
             * @private
             * @param {Document} ownerDocument The document.
             * @returns {Object} An object of data.
             */
            function getExpandoData(ownerDocument) {
              var data = expandoData[ownerDocument[expando]];
              if (!data) {
                data = {};
                expanID++;
                ownerDocument[expando] = expanID;
                expandoData[expanID] = data;
              }
              return data;
            }
    
            /**
             * returns a shived element for the given nodeName and document
             * @memberOf html5
             * @param {String} nodeName name of the element
             * @param {Document} ownerDocument The context document.
             * @returns {Object} The shived element.
             */
            function createElement(nodeName, ownerDocument, data){
              if (!ownerDocument) {
                ownerDocument = document;
              }
              if(supportsUnknownElements){
                return ownerDocument.createElement(nodeName);
              }
              if (!data) {
                data = getExpandoData(ownerDocument);
              }
              var node;
    
              if (data.cache[nodeName]) {
                node = data.cache[nodeName].cloneNode();
              } else if (saveClones.test(nodeName)) {
                node = (data.cache[nodeName] = data.createElem(nodeName)).cloneNode();
              } else {
                node = data.createElem(nodeName);
              }
    
              // Avoid adding some elements to fragments in IE < 9 because
              // * Attributes like `name` or `type` cannot be set/changed once an element
              //   is inserted into a document/fragment
              // * Link elements with `src` attributes that are inaccessible, as with
              //   a 403 response, will cause the tab/window to crash
              // * Script elements appended to fragments will execute when their `src`
              //   or `text` property is set
              return node.canHaveChildren && !reSkip.test(nodeName) && !node.tagUrn ? data.frag.appendChild(node) : node;
            }
    
            /**
             * returns a shived DocumentFragment for the given document
             * @memberOf html5
             * @param {Document} ownerDocument The context document.
             * @returns {Object} The shived DocumentFragment.
             */
            function createDocumentFragment(ownerDocument, data){
              if (!ownerDocument) {
                ownerDocument = document;
              }
              if(supportsUnknownElements){
                return ownerDocument.createDocumentFragment();
              }
              data = data || getExpandoData(ownerDocument);
              var clone = data.frag.cloneNode(),
              i = 0,
              elems = getElements(),
              l = elems.length;
              for(;i<l;i++){
                clone.createElement(elems[i]);
              }
              return clone;
            }
    
            /**
             * Shivs the `createElement` and `createDocumentFragment` methods of the document.
             * @private
             * @param {Document|DocumentFragment} ownerDocument The document.
             * @param {Object} data of the document.
             */
            function shivMethods(ownerDocument, data) {
              if (!data.cache) {
                data.cache = {};
                data.createElem = ownerDocument.createElement;
                data.createFrag = ownerDocument.createDocumentFragment;
                data.frag = data.createFrag();
              }
    
    
              ownerDocument.createElement = function(nodeName) {
                //abort shiv
                if (!html5.shivMethods) {
                  return data.createElem(nodeName);
                }
                return createElement(nodeName, ownerDocument, data);
              };
    
              ownerDocument.createDocumentFragment = Function('h,f', 'return function(){' +
                                                              'var n=f.cloneNode(),c=n.createElement;' +
                                                              'h.shivMethods&&(' +
                                                              // unroll the `createElement` calls
                                                              getElements().join().replace(/[\w\-]+/g, function(nodeName) {
                data.createElem(nodeName);
                data.frag.createElement(nodeName);
                return 'c("' + nodeName + '")';
              }) +
                ');return n}'
                                                             )(html5, data.frag);
            }
    
            /*--------------------------------------------------------------------------*/
    
            /**
             * Shivs the given document.
             * @memberOf html5
             * @param {Document} ownerDocument The document to shiv.
             * @returns {Document} The shived document.
             */
            function shivDocument(ownerDocument) {
              if (!ownerDocument) {
                ownerDocument = document;
              }
              var data = getExpandoData(ownerDocument);
    
              if (html5.shivCSS && !supportsHtml5Styles && !data.hasCSS) {
                data.hasCSS = !!addStyleSheet(ownerDocument,
                                              // corrects block display not defined in IE6/7/8/9
                                              'article,aside,dialog,figcaption,figure,footer,header,hgroup,main,nav,section{display:block}' +
                                                // adds styling not present in IE6/7/8/9
                                                'mark{background:#FF0;color:#000}' +
                                                // hides non-rendered elements
                                                'template{display:none}'
                                             );
              }
              if (!supportsUnknownElements) {
                shivMethods(ownerDocument, data);
              }
              return ownerDocument;
            }
    
            /*--------------------------------------------------------------------------*/
    
            /**
             * The `html5` object is exposed so that more elements can be shived and
             * existing shiving can be detected on iframes.
             * @type Object
             * @example
             *
             * // options can be changed before the script is included
             * html5 = { 'elements': 'mark section', 'shivCSS': false, 'shivMethods': false };
             */
            var html5 = {
    
              /**
               * An array or space separated string of node names of the elements to shiv.
               * @memberOf html5
               * @type Array|String
               */
              'elements': options.elements || 'abbr article aside audio bdi canvas data datalist details dialog figcaption figure footer header hgroup main mark meter nav output progress section summary template time video',
    
              /**
               * current version of html5shiv
               */
              'version': version,
    
              /**
               * A flag to indicate that the HTML5 style sheet should be inserted.
               * @memberOf html5
               * @type Boolean
               */
              'shivCSS': (options.shivCSS !== false),
    
              /**
               * Is equal to true if a browser supports creating unknown/HTML5 elements
               * @memberOf html5
               * @type boolean
               */
              'supportsUnknownElements': supportsUnknownElements,
    
              /**
               * A flag to indicate that the document's `createElement` and `createDocumentFragment`
               * methods should be overwritten.
               * @memberOf html5
               * @type Boolean
               */
              'shivMethods': (options.shivMethods !== false),
    
              /**
               * A string to describe the type of `html5` object ("default" or "default print").
               * @memberOf html5
               * @type String
               */
              'type': 'default',
    
              // shivs the document according to the specified `html5` object options
              'shivDocument': shivDocument,
    
              //creates a shived element
              createElement: createElement,
    
              //creates a shived documentFragment
              createDocumentFragment: createDocumentFragment
            };
    
            /*--------------------------------------------------------------------------*/
    
            // expose html5
            window.html5 = html5;
    
            // shiv the document
            shivDocument(document);
    
        }(this, document));
        /*>>shiv*/
    
        // Assign private properties to the return object with prefix
        Modernizr._version      = version;
    
        // expose these for the plugin API. Look in the source for how to join() them against your input
        /*>>prefixes*/
        Modernizr._prefixes     = prefixes;
        /*>>prefixes*/
        /*>>domprefixes*/
        Modernizr._domPrefixes  = domPrefixes;
        Modernizr._cssomPrefixes  = cssomPrefixes;
        /*>>domprefixes*/
    
        /*>>mq*/
        // Modernizr.mq tests a given media query, live against the current state of the window
        // A few important notes:
        //   * If a browser does not support media queries at all (eg. oldIE) the mq() will always return false
        //   * A max-width or orientation query will be evaluated against the current state, which may change later.
        //   * You must specify values. Eg. If you are testing support for the min-width media query use:
        //       Modernizr.mq('(min-width:0)')
        // usage:
        // Modernizr.mq('only screen and (max-width:768)')
        Modernizr.mq            = testMediaQuery;
        /*>>mq*/
    
        /*>>hasevent*/
        // Modernizr.hasEvent() detects support for a given event, with an optional element to test on
        // Modernizr.hasEvent('gesturestart', elem)
        Modernizr.hasEvent      = isEventSupported;
        /*>>hasevent*/
    
        /*>>testprop*/
        // Modernizr.testProp() investigates whether a given style property is recognized
        // Note that the property names must be provided in the camelCase variant.
        // Modernizr.testProp('pointerEvents')
        Modernizr.testProp      = function(prop){
            return testProps([prop]);
        };
        /*>>testprop*/
    
        /*>>testallprops*/
        // Modernizr.testAllProps() investigates whether a given style property,
        //   or any of its vendor-prefixed variants, is recognized
        // Note that the property names must be provided in the camelCase variant.
        // Modernizr.testAllProps('boxSizing')
        Modernizr.testAllProps  = testPropsAll;
        /*>>testallprops*/
    
    
        /*>>teststyles*/
        // Modernizr.testStyles() allows you to add custom styles to the document and test an element afterwards
        // Modernizr.testStyles('#modernizr { position:absolute }', function(elem, rule){ ... })
        Modernizr.testStyles    = injectElementWithStyles;
        /*>>teststyles*/
    
    
        /*>>prefixed*/
        // Modernizr.prefixed() returns the prefixed or nonprefixed property name variant of your input
        // Modernizr.prefixed('boxSizing') // 'MozBoxSizing'
    
        // Properties must be passed as dom-style camelcase, rather than `box-sizing` hypentated style.
        // Return values will also be the camelCase variant, if you need to translate that to hypenated style use:
        //
        //     str.replace(/([A-Z])/g, function(str,m1){ return '-' + m1.toLowerCase(); }).replace(/^ms-/,'-ms-');
    
        // If you're trying to ascertain which transition end event to bind to, you might do something like...
        //
        //     var transEndEventNames = {
        //       'WebkitTransition' : 'webkitTransitionEnd',
        //       'MozTransition'    : 'transitionend',
        //       'OTransition'      : 'oTransitionEnd',
        //       'msTransition'     : 'MSTransitionEnd',
        //       'transition'       : 'transitionend'
        //     },
        //     transEndEventName = transEndEventNames[ Modernizr.prefixed('transition') ];
    
        Modernizr.prefixed      = function(prop, obj, elem){
          if(!obj) {
            return testPropsAll(prop, 'pfx');
          } else {
            // Testing DOM property e.g. Modernizr.prefixed('requestAnimationFrame', window) // 'mozRequestAnimationFrame'
            return testPropsAll(prop, obj, elem);
          }
        };
        /*>>prefixed*/
    
    
        /*>>cssclasses*/
        // Remove "no-js" class from <html> element, if it exists:
        docElement.className = docElement.className.replace(/(^|\s)no-js(\s|$)/, '$1$2') +
    
                                // Add the new classes to the <html> element.
                                (enableClasses ? ' js ' + classes.join(' ') : '');
        /*>>cssclasses*/
    
        return Modernizr;
    
    })(this, this.document);
    